Mosaic.



PATENTED SEPT. 13, 1904.

W. MAINZER.

MOSAIC.

APPLICATION FILED MAE-7. 1904.

N0 MODEL.

%/ZtTZEE EI-IE.

UNTTED STATES Patented September 13, 1904.

PATENT FEIcE.

MOSAIC.

SPECIFICATION forming part of Letters Patent No. 769,704, dated September 13, 1904:.

Application filed March 7, 1904. Serial No. 196,889. (No model.)

l stantially undiminished and the increase of Be it known that I, IVOLFE MAINzuaasubf brilliancy imparted to the design is unimject of the King of Great Britain, residing in London, England, have invented certain new and useful Improvements Relating to Mosaics; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to mosaics made of natural stones, ceramic ware, vitreous materials, or the like, having embedded therein strips of brass or other metal, the upper edges of which are flush with the surface of the mo saic. These embedded metal strips, although used as outlines or other lines of the design or pattern produced by arrangement of the materials employed and when polished increasing the brilliancy of the mosaic work, were chiefly intended to prevent cracking, to which mosaics of large area are liable, especially when laid on beds of concrete or cement.

Heretofore metal in the form of continuous strips has been used in this manner, and in practice this has been found to be defective, since the natural expansion and contraction of long strips of the metal under variations of temperature are themselves active in causing cracks. Moreover, in some cases considerable labor is entailed in flattening the cement or other bed upon which the strips are laid in order that these strips may lie flush thereon. To obviate these disadvantages accord ing to the present invention, I employ short lengths of strip metal suitably connected together. By using short lengths the expansion of each individual piece is not appreciable and so has no disrupting effect on the finished mosaic. In addition long lines of metal built up from short strips accommodate themselves more readily to inequalities of the groundwork or backing, the ends of the strips lying closer to the average height of the whole length. Since the lengths of metal are connected together, the binding or strengthening effect arising from the use of the metal is subpaired.

In the accompanying drawings, Figure 1 is a plan view of a mosaic, and Fig. 2 shows a section on the line 2 2, Fig. 1. Fig. 3is a detail view of the adjacent end portions of two strips, the strips being slightly separated. Figs. & and 5 show the manner of securing said strips together, Fig. I being a side view and Fig. 5 a plan view.

a a are short strips of metal connected together by joints,preferabl v of the kind shown in Fig. 3, and thus going to make up a composite partition or partitions. As here shown, one of the strips (1 is provided with a tongue or car 7), which overlaps the adjacent strip, as indicated by dotted lines in Fig. 3, when the two strips are united. Holes 0 are provided to receive a pin securing the two members u together. and these holes may be elongated or enlarged, so that the pin [its loosely therein. The strips can then adjust themselves more closely to the groundwork. The tongue]; is bent out of the plane of the strips 0, so that the edges Z will lie in the same plane. It is preferable to leave a small gap between these edges (Z when setting the strips 0 in position on the groundwork or backing. Lengths of metal built up from short strips thus connected together are shaped to conform to any required design, and the spaces between the metal lengths are then filled up with natural stone or other material in the ordinary manner, the height of each strip being such that in the finished mosaic the edges of the strips are flush with the surface thereof.

I do not confine myself to mosaics of large area solely, the invention lending itself also to mosaic tiles, stairs, and stair-nosings and the like, and in this latter case the metal strips may be formed partly or wholly from castings.

If required, I may form flanges at the lower edges of the strips or punch holes therein or use any other convenient means to key the strips in the cement or other backing.

1. A mosaic having a composite metallic partition consisting of sections of metal strips secured together at-their ends, and having disposed with their ends overlapping each other and having holes in their overlapping portions, and securing-pins penetrating said I5 holes, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 12th day of February, 1904:.

WOLFE MAINZER.

Witnesses:

H. D. JAMESON, A. NUTTING. 

